Thread: Air compressor cfm and hose size?

We are considering changing our air compressor and have a question on hose size. What size hose do we need for a 60 cfm compressor? We have been using a 20 cfm compressor with 150' of hose on an air powered hose reel.

Almost all of our blowout connections are standard hose bibs with maybe a 1/2" opening or so. And this has worked well for us as long as we did one zone at a time.

Thanks WB for the insight. How about your opine on hose size?? The hose bibs are what they are. PVC pipe fittings with 1/2" fpt and the hose bib. But the fpt fitting is only 1/2". Standard install around here.

O.k. for discussion sake, given that hose bibs are in place, am I going to gain in time saving with a 60 cfm unit over our 20 cfm unit like I hope?

Most residential & small commercial blow out ports here are through a 1/2" fpt 'heel tee' on 3/4" or 1" copper off the POC to the manifold. There's either a boiler drain in it or just a plug. I've cleared up to 4 zones at a time using 125cfm with 3/4" heavy duty (red and/or black) garden hose. Zones w/6 rotaries each.

The OP might get 3 resi zones together with 60 cfm. Your mileage may vary.